<template>
  <div :class="className" :style="{height:height,width:width}" />
</template>

<script>
import * as echarts from 'echarts'

require('echarts/theme/macarons') // echarts theme
require('echarts/lib/component/legend')

import { debounce } from '@/utils'

export default {
  name: 'Shopeeadschart',
  props: {
    className: {
      type: String,
      default: 'chart'
    },
    width: {
      type: String,
      default: '100%'
    },
    height: {
      type: String,
      default: '350px'
    },
    autoResize: {
      type: Boolean,
      default: true
    },
    chartData: {
      type: Object
    }
  },
  data() {
    return {
      adnotes: [],
      chart: null
    }
  },
  watch: {
    chartData: {
      deep: true,
      handler(val) {
        if (this.chart) {
          this.setOptions(val)
        } else {
          this.chart = echarts.init(this.$el, 'macarons')
          this.setOptions(this.chartData)
        }
      }
    }
  },
  mounted() {
    // this.initChart()
    if (this.autoResize) {
      this.__resizeHanlder = debounce(() => {
        if (this.chart) {
          this.chart.resize()
        }
      }, 100)
      window.addEventListener('resize', this.__resizeHanlder)
    }

    // 监听侧边栏的变化
    const sidebarElm = document.getElementsByClassName('sidebar-container')[0]
    sidebarElm.addEventListener('transitionend', this.__resizeHanlder)
  },
  beforeDestroy() {
    if (!this.chart) {
      return
    }
    if (this.autoResize) {
      window.removeEventListener('resize', this.__resizeHanlder)
    }

    const sidebarElm = document.getElementsByClassName('sidebar-container')[0]
    sidebarElm.removeEventListener('transitionend', this.__resizeHanlder)

    this.chart.dispose()
    this.chart = null
  },
  methods: {
    setOptions({ xAxis, impression, click, cost, roi, order_gmv, order } = {}) {
      this.chart.setOption({
        xAxis: {
          data: xAxis,
          boundaryGap: false,
          axisTick: {
            show: false
          }
        },
        grid: {
          left: 10,
          right: 10,
          bottom: 20,
          top: 30,
          containLabel: true
        },
        tooltip: {
          trigger: 'axis',
          formatter: function(params, ticket, callback) {
            let htmlStr = ''
            for (let i = 0; i < params.length; i++) {
              const param = params[i]
              const xName = param.name// x轴的名称
              const seriesName = param.seriesName// 图例名称
              const value = param.value// y轴值
              const color = param.color// 图例颜色

              if (i === 0) {
                htmlStr += xName + '<br/>'// x轴的名称
              }
              htmlStr += '<div>'
              // 为了保证和原来的效果一样，这里自己实现了一个点的效果
              htmlStr += '<span style="margin-right:5px;display:inline-block;width:10px;height:10px;border-radius:5px;background-color:' + color + ';"></span>'
              htmlStr += seriesName + '：' + value
              htmlStr += '</div>'
            }
            return htmlStr
          },
          padding: [5, 10]
        },
        legend: {
          data: ['展示', '点击', '花费', 'ROI', '销售', '订单']
        },
        yAxis: [
          { // 第一个y轴位置在左侧
            position: 'left',
            type: 'value',
            name: '展示',
            axisLine: {
              lineStyle: {
                color: '#FF005A'
              }
            },
            axisLabel: {
              formatter: '{value} 次'
            }
          },
          { // 第二个y轴在右侧
            position: 'left',
            type: 'value',
            name: '点击',
            axisLine: {
              lineStyle: {
                color: '#3888fa'
              }
            },
            axisLabel: {
              formatter: '{value} 次'
            }
          },
          { // 第三个y轴也在右侧，距第二个70个像素
            position: 'right',
            offset: 70,
            type: 'value',
            name: '花费',
            axisLine: {
              lineStyle: {
                color: '#9400D3'
              }
            },
            axisLabel: {
              formatter: '{value}美元'
            }
          },
          { // 第三个y轴也在右侧，距第二个70个像素
            position: 'right',
            offset: 70,
            type: 'value',
            name: 'ROI',
            axisLine: {
              lineStyle: {
                color: '#940000'
              }
            },
            axisLabel: {
              formatter: '{value}'
            }
          },
          { // 第三个y轴也在右侧，距第二个70个像素
            position: 'right',
            offset: 70,
            type: 'value',
            name: '销售',
            axisLine: {
              lineStyle: {
                color: '#949111'
              }
            },
            axisLabel: {
              formatter: '{value}'
            }
          },
          { // 第三个y轴也在右侧，距第二个70个像素
            position: 'right',
            offset: 70,
            type: 'value',
            name: '订单',
            axisLine: {
              lineStyle: {
                color: '#00CD00'
              }
            },
            axisLabel: {
              formatter: '{value}'
            }
          }
        ],

        series: [
          {
            name: '展示', itemStyle: {
              normal: {
                color: '#FF005A',
                lineStyle: {
                  color: '#FF005A',
                  width: 2
                }
              }
            },
            smooth: true,
            type: 'line',
            yAxisIndex: '0',
            data: impression,
            animationDuration: 2800,
            animationEasing: 'cubicInOut'
          },
          {
            name: '点击',
            smooth: true,
            type: 'line',
            itemStyle: {
              normal: {
                color: '#3888fa',
                lineStyle: {
                  color: '#3888fa',
                  width: 2
                },
                areaStyle: {
                  color: '#f3f8ff'
                }
              }
            },
            yAxisIndex: '1',
            data: click,
            animationDuration: 2800,
            animationEasing: 'quadraticOut'
          },
          {
            name: '花费',
            smooth: true,
            type: 'line',
            itemStyle: {
              normal: {
                color: '#9400D3',
                lineStyle: {
                  color: '#9400D3',
                  width: 2
                },
                areaStyle: {
                  color: '#f3f8ff'
                }
              }
            },
            yAxisIndex: '2',
            data: cost,
            animationDuration: 2800,
            animationEasing: 'quadraticOut'
          },
          {
            name: 'ROI',
            smooth: true,
            type: 'line',
            itemStyle: {
              normal: {
                color: '#00CDCD',
                lineStyle: {
                  color: '#00CDCD',
                  width: 2
                },
                areaStyle: {
                  color: '#f3f8ff'
                }
              }
            },
            yAxisIndex: '3',
            data: roi,
            animationDuration: 2800,
            animationEasing: 'quadraticOut'
          },
          {
            name: '销售',
            smooth: true,
            type: 'line',
            itemStyle: {
              normal: {
                color: '#00CDCD',
                lineStyle: {
                  color: '#00CDCD',
                  width: 2
                },
                areaStyle: {
                  color: '#f3f8ff'
                }
              }
            },
            yAxisIndex: '4',
            data: order_gmv,
            animationDuration: 2800,
            animationEasing: 'quadraticOut'
          },
          {
            name: '订单',
            smooth: true,
            type: 'line',
            itemStyle: {
              normal: {
                color: '#00CDCD',
                lineStyle: {
                  color: '#00CDCD',
                  width: 2
                },
                areaStyle: {
                  color: '#f3f8ff'
                }
              }
            },
            yAxisIndex: '5',
            data: order,
            animationDuration: 2800,
            animationEasing: 'quadraticOut'
          }
        ]
      })
    },
    initChart() {
      this.chart = echarts.init(this.$el, 'macarons')
      this.setOptions(this.chartData)
    }
  }
}
</script>
